What is the equation of the line normal to #f(x)=6x^2 -x - 9 # at #x=1#?
1 Answer
Mar 10, 2016
Explanation:
We can find the gradient of this function
So at
The equation of the normal line is of the form:
So the equation of the normal
The situation looks like this:
graph{(-x/11-43/11-y)(6x^2-x-9-y)=0 [-20, 20, -10, 10]}